<template>
  <view class="container">
    <!-- 空白页 -->
    <empty v-if="loadingType === 'nomore' && groupShopList.length === 0"></empty>
    <view class="groupshop-list">
      <block v-for="(item, index) in groupShopList" :key="index">
        <navigator class="groupshop-item" :class="{'b-b': index!==groupShopList.length-1}" :url="'/pages/product/detail?id=' + item.spuId + '&gid=' + item.id">
          <view class="image-wrapper">
            <image :src="item.img" :class="[item.loaded]" mode="aspectFill" lazy-load @load="onImageLoad('groupShopList', index)" @error="onImageError('groupShopList', index)"></image>
          </view>
          <view class="item-right">
            <text class="clamp-title">{{item.title}}</text>
            <view class="pro-box">
              <view class="progress-box">
                <progress :percent="100 * item.buyerNum / item.minNum" activeColor="#fa436a" active stroke-width="6" />
              </view>
              <text>{{item.minNum}}人成团</text>
            </view>
            <text class="bottom">
              <!-- <text style="text-decoration:line-through;color: #6B6B6B;">¥{{item.originalPrice / 100.0}}</text> -->
              <text class="price">¥{{item.minPrice / 100.0}}</text>
              <text class="attr info">已拼团{{item.buyerNum}}件</text>
            </text>
          </view>
        </navigator>
      </block>
    </view>

  </view>
</template>

<script>
import uniLoadMore from '@/components/uni-load-more/uni-load-more.vue'
import empty from '@/components/empty'
export default {
  components: {
    uniLoadMore,
    empty,
  },
  data() {
    return {
      groupShopList: [],
      pageNo: 1,
      loadingType: 'more',
    }
  },
  onLoad(options) {
    this.loadData()
  },
  //下拉刷新
  onPullDownRefresh() {
    this.loadData('refresh')
  },
  //加载更多
  onReachBottom() {
    this.loadData()
  },
  methods: {
    //获取收藏列表
    loadData(type) {
      const that = this
      if (type === 'refresh') {
        that.pageNo = 1
        that.groupShopList = []
        that.loadingType = 'more'
      }
      if (that.loadingType == 'more') {
        that.loadingType = 'loading'
        that.$api
          .request('groupshop', 'getGroupShopPage', {
            pageNo: that.pageNo,
          })
          .then((res) => {
            that.pageNo = res.data.pageNo + 1
            that.loadingType =
              res.data.pageNo < res.data.totalPageNo ? 'more' : 'nomore'
            res.data.items.forEach((item) => {
              that.groupShopList.push(item)
            })
            if (type === 'refresh') {
              uni.stopPullDownRefresh()
            }
          })
      }
    },
    //监听image加载完成
    onImageLoad(key, index) {
      this.$set(this[key][index], 'loaded', 'loaded')
    },
    //监听image加载失败
    onImageError(key, index) {
      this[key][index].image = '/static/errorImage.jpg'
    },
  },
}
</script>

<style lang="scss">
.container {
  padding-bottom: 134upx;

  /* 空白页 */
  .empty {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100vh;
    padding-bottom: 100upx;
    display: flex;
    justify-content: center;
    flex-direction: column;
    align-items: center;
    background: #fff;

    image {
      width: 240upx;
      height: 160upx;
      margin-bottom: 30upx;
    }

    .empty-tips {
      display: flex;
      font-size: $font-sm + 2upx;
      color: $font-color-disabled;

      .navigator {
        color: $uni-color-primary;
        margin-left: 16upx;
      }
    }
  }
}

/* 团购列表项 */
.groupshop-item {
  display: flex;
  padding: 30upx 40upx;

  .image-wrapper {
    width: 230upx;
    height: 230upx;
    image {
      border-radius: 8upx;
    }
  }

  .item-right {
    flex: 1;
    position: relative;
    padding-left: 30upx;
    .clamp-title {
      width: 410upx;
      display: -webkit-box;
      -webkit-line-clamp: 3;
      -webkit-box-orient: vertical;
    }
    .bottom {
      font-size: $font-base + 2upx;
      color: $font-color-dark;
      height: 40upx;
      line-height: 40upx;
      position: absolute;
      bottom: 10upx;
      left: 30upx;
    }

    .price {
      color: $uni-color-primary;
      font-size: 18px;
    }

    .attr {
      font-size: $font-sm + 2upx;
      color: $font-color-light;
      height: 50upx;
      line-height: 50upx;
    }

    .info {
      margin-left: 10upx;
    }

    .pro-box {
      display: flex;
      align-items: center;
      margin-top: 10upx;
      font-size: $font-sm;
      color: $font-base;
      padding-right: 10upx;

      .progress-box {
        flex: 1;
        border-radius: 10px;
        overflow: hidden;
        margin-right: 8upx;
      }
    }

    .price {
      height: 50upx;
      line-height: 50upx;
    }
  }
}
</style>
